[PATCH 1/1] efi_loader: efi_realloc() must check efi_alloc() return value

[Heinrich Schuchardt]

Avoid copying to NULL if out of memory.

Fixes: 3c08df58cc43 ("lib: efi_loader: efi_memory.c: add efi_realloc() for realloc memory")
Addresses-Coverity-ID: 569499: Null pointer dereferences (NULL_RETURNS)
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt at canonical.com>
---
 lib/efi_loader/efi_memory.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c
index 6dfc698a247..b77c2f980cc 100644
--- a/lib/efi_loader/efi_memory.c
+++ b/lib/efi_loader/efi_memory.c
@@ -714,6 +714,8 @@ efi_status_t efi_realloc(void **ptr, size_t size)
 		sizeof(struct efi_pool_allocation);
 
 	new_ptr = efi_alloc(size);
+	if (!new_ptr)
+		return EFI_OUT_OF_RESOURCES;
 
 	/* copy old data to new alloced buffer */
 	memcpy(new_ptr, *ptr, min(size, old_size));
-- 
2.48.1